20711812

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42793}}^1$

素因数の和:42819

約数の個数: 18

約数和(自身を含む): 39841214

約数和(自身を除く): 19129402

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42793, 85586, 171172, 470723, 941446, 1882892, 5177953, 10355906, 20711812]

約数ペア:

[(1, 20711812), (2, 10355906), (4, 5177953), (11, 1882892), (22, 941446), (44, 470723), (121, 171172), (242, 85586), (484, 42793)]